1997 Buick Park Avenue missfires

Tiny
HEATHER1123
  • MEMBER
  • 1997 BUICK PARK AVENUE
Engine Performance problem
1997 Buick Park Avenue V8

i cant figure out why my vehicle is missfiring.
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Saturday, February 20th, 2010 AT 4:50 PM

1 Reply

Tiny
RASMATAZ
  • MEMBER
Do have a check engine light on? If not, inspect and test all the following listed below:

Engine running rough or misfiring can be cause by the following:
1. Defective spark plug.
2. Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4. False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.
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Saturday, February 20th, 2010 AT 5:05 PM

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